20998230

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1$

素因数の和:254

約数の個数: 128

約数和(自身を含む): 61585920

約数和(自身を除く): 40587690

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 17, 19, 22, 30, 33, 34, 38, 51, 55, 57, 66, 85, 95, 102, 110, 114, 165, 170, 187, 190, 197, 209, 255, 285, 323, 330, 374, 394, 418, 510, 561, 570, 591, 627, 646, 935, 969, 985, 1045, 1122, 1182, 1254, 1615, 1870, 1938, 1970, 2090, 2167, 2805, 2955, 3135, 3230, 3349, 3553, 3743, 4334, 4845, 5610, 5910, 6270, 6501, 6698, 7106, 7486, 9690, 10047, 10659, 10835, 11229, 13002, 16745, 17765, 18715, 20094, 21318, 21670, 22458, 32505, 33490, 35530, 36839, 37430, 41173, 50235, 53295, 56145, 63631, 65010, 73678, 82346, 100470, 106590, 110517, 112290, 123519, 127262, 184195, 190893, 205865, 221034, 247038, 318155, 368390, 381786, 411730, 552585, 617595, 636310, 699941, 954465, 1105170, 1235190, 1399882, 1908930, 2099823, 3499705, 4199646, 6999410, 10499115, 20998230]

約数ペア:

[(1, 20998230), (2, 10499115), (3, 6999410), (5, 4199646), (6, 3499705), (10, 2099823), (11, 1908930), (15, 1399882), (17, 1235190), (19, 1105170), (22, 954465), (30, 699941), (33, 636310), (34, 617595), (38, 552585), (51, 411730), (55, 381786), (57, 368390), (66, 318155), (85, 247038), (95, 221034), (102, 205865), (110, 190893), (114, 184195), (165, 127262), (170, 123519), (187, 112290), (190, 110517), (197, 106590), (209, 100470), (255, 82346), (285, 73678), (323, 65010), (330, 63631), (374, 56145), (394, 53295), (418, 50235), (510, 41173), (561, 37430), (570, 36839), (591, 35530), (627, 33490), (646, 32505), (935, 22458), (969, 21670), (985, 21318), (1045, 20094), (1122, 18715), (1182, 17765), (1254, 16745), (1615, 13002), (1870, 11229), (1938, 10835), (1970, 10659), (2090, 10047), (2167, 9690), (2805, 7486), (2955, 7106), (3135, 6698), (3230, 6501), (3349, 6270), (3553, 5910), (3743, 5610), (4334, 4845)]